Mutualistic
a. mutualism的形容詞形式（互助論, 互利共生）
? 同義詞
??? 情景例句
You don't mean to tell me that you and ...
你不會是告訴我們你和……
A man who has friend must show himself friendly.
與朋友交，必須友好相處。
He owes his success more to luck than to ability.
他認為他的成功是靠運氣而不是因為自己的能力。